I watched the intro video, and it answered most of my questions. One last question though. My best friend is a writer, and he has been for about 15 years. He dropped off writing due to circumstances and during that difficult time he quit smoking (he has smoked for 16 years.) Now he wants to write again and finds it impossible with out smoking. He wants to try the E-cigs, and we were looking at the DSE901 model. Would this be a good substitution for smoking while he writes?